Commonly used chip: I-NTAG 203, I-NTAG 213, I-NTAG 215, I-NTAG216, FM11RF08, Ngaphezulu, Ultralight C, I code SLI-X, Desfire 4K/8K,njl. Frequency range: 13.0MHz~14.5MHz Protocol standard: ISO/IEC14443-A, ISO15693 Memory: according to the chip Commonly used size: 4.5×4.5mm, 8×14mm, Φ6mm, Φ8mm, Φ10mm, Φ15mm, Φ20mm, Φ25mm, Φ30mm, or customized Thickness: 0.15~0.25mm Thickness with glue: 1.0~1.3mm Material: FR-4 Surface material: PCB Working mode: R/W Read/write …